It's probably the spark ignitor. Any idea what can be wrong? before it actually ignites and a big whoosh of fire comes out the front of the furnace (well, a few inches of flame do) and then it shuts off and the ignitor starts to click again. There are two primary reasons why your furnace might make a banging sound when starting: Dirty furnace burners. Multiple clicking noise when gas furnace cycles on. This problem started today, the motor comes on, about 20 seconds later I can hear a clicking and the sparks rattling away, it seems to ignite a pilot flame which burns for a 2 seconds and then it shuts off. If you hear your furnace making noise it could be a problem with the fan that cools down the furnace. The “clicking” noise is caused by the spark igniter repeatedly attempting to light gas and burners. Worn bearings can cause the motor to burn out, so a clicking noise from the blower motor is a sign to have your furnace professionally serviced. Let’s cover the basics: The ignition system in your car works like the ignition system in your car. The Vent is shared with the Hot water heater. Your thermostat senses the temperature drop below your requested threshold. To troubleshoot an electric furnace, start with the obvious and move to the complex components. Furnace Clicks ~10+ times Before kicking on, Re: Furnace Clicks ~10+ times Before kicking on, Quote from: wizlem on November 21, 2014, 11:09:46 AM, Quote from: kevinb421 on November 21, 2014, 11:49:48 AM, Quote from: greaper007 on December 05, 2014, 10:49:52 PM, Quote from: eyePod on December 06, 2014, 07:55:50 AM, Quote from: greaper007 on December 06, 2014, 04:13:53 PM. Reasons a furnace might make a clicking noise includes: Loose inducer: Oil-powered furnaces use a motor-powered fan, or inducer, to push out smoke and fumes. Clicking sound from ducts — Do you hear clicking in the house, away from the furnace? Archived. I have never had my Heating or Cooling go out when I needed them the most. In this case it will need to be exchanged for a new one. This will also require immediate attention. This exact same thing happened to me last year. What Causes a Furnace to Make Knocking Sounds?. If there is no gas, there is no heat. Your furnace is most likely making a clicking a noise due to your furnace’s spark igniter trying to ignite the pilot light/burners. Like 20+ years old. This can cause the unit not to come on. This happens when dirt, leaves, sticks, or other debris like a bird or animal nest ends up inside the pipe resulting in a blockage. Squealing – Not unlike a car, squealing coming from your furnace could indicate a faulty belt or a failing fan motor. It runs for short period of time and turns off before the temperature goes above 70. This can result in the “clicking” noise. Login with username, password and session length. Entrust the troubleshooting of this issue to a pro for your personal safety. Problem started a few days ago. sorry, I'm going to be vague with my terms but hoping it helps. Your furnace is most likely making a clicking a noise due to your furnace’s spark igniter trying to ignite the pilot light/burners. They turned off our gas inside our home for their repairs, but didn't turn the furnace back on (it was too hot to need it anyway). The ignition starts the car or the furnace. Furnace clicks, ignites a flame and then shuts off - stuck in a loop! Only sometimes is there an accompanying whooh. They fit kind of layered, 1 side going under the neighbor's and then above the next one (why you have to twist it to get out). You guys have given me a lot of info and I'll be taking a whack at it this weekend! Verify the unit has power. If you see any sort of melting (like a solder splatter) on the ignitor rod that's the issue with the ignitor. ", ©2020 Alpine Temperature Control - St. George Heating & Air Specialists •, Furnace Not Working? In this scenario, gas has time to build up in the furnace before it is ignited, causing a much larger “boom” than expected when the gas is ignited immediately. Posted by 1 year ago. 1. Causes of delayed ignition. Furnace Maintenance; Furnace Installation; Furnace Repair; Furnace Replacement; Oil Furnaces; Cooling. In other words, turning on and off frequently is just a … The flue pipe, also known as the exhaust vent, is located on your roof and can also cause your furnace to short cycle. You don't say what sort of system you have there and that might alter the advice on whether you should be trying to do it yourself. We are burning through way too much oil and would like to know what needs to be done for the furnace to start only when temperature dips below the set temperature and stop once it is above the set temperature. The fan motor turns on to pull air to the burner. The boiler is on the ground floor (no basement), in the corner of the house. When an electric furnace first starts, there are switches inside the unit that respond to the movement of air and the thermostat commands to start up the heating element. Every furnace has a blower designed to propel air from the furnace into the air ducts of the house. Filter was changed right before we turned it on at the start of November. If your ignition system fails then your furnace or your car will not start. You can call us at Alpine Temperature Contol in St. George. I turned the unit off today because I worried about leaving it to do that while I was at work. I think I'm going to try cleaning both the sensor and the ignitor first. The inducer blower does start up sometimes I hear it for less than 5 seconds and it stops and I have to wait for it to try again, other times all lights and main blower starts and it stops. We bought our townhome in June. I have used Alpine for 8 years and will continue to do so. Whereas, a properly functioning furnace will run for several minutes per cycle. Furnace Fan Noise. Clicking – A clicking noise coming from your furnace is typically an indication of a faulty flame sensor or possibly a problem between the ignition and the gas. The transformer is a small box inside the furnace that has wire connections on both sides. — Furnace Repair Tips, The Best HVAC St George Utah To Cut Your Monthly Bills. We have Carrier 58VMR oil furnace that is about 4 years old. Blower fans in your furnace rotate on a main shaft that attaches to the motor, and, when this shaft becomes rusted or … ", "I have Alpine service my home every spring and fall to make sure my system is up and running without any problems. In this case, the igniters are working to try to light the burners or light pilot, but can’t due to a malfunction with the ignition system. The problem is just there's too much dust/carbon/something in the horns that block the gas from flowing through so it takes it a bit to accumulate enough to start the furnace up. The 2 guys from Alpine came, diagnosed the problem and fixed it within minutes. RV Furnace Stops and Starts This issue is often caused by the thermostat receiving false readings. The pilot flame may not be hitting that flame sensor due to an incorrect mixture of gas and air. I had them give me a second opinion on changing out my A/C 10 years ago, and I have used them ever since. I turned on the valve to the gas for the furnace. Either hot air from the duct is blowing on the thermostat, causing it to think the RV is warmer than it actually is, or cold air is blowing across the thermostat, resulting in a similar issue. -Advertisement- Sometimes the motor on the burner assembly will burn out, Richter says. A furnace that starts then stops is a common issue also known as short cycling. If your furnace clicks on or initiates the start cycle, but does not fire up, you likely have a faulty or dirty igniter/sensor. The blower, after a delay, turns on again to distribute the heated air throughout your home. In other words, there’s an ignition system malfunction that needs to be fixed. If you need a picture I can point it out on mine, but they are pretty much the largest things once you take off the cover so should be easy to spot. The Furnace Won’t Start. This problem is especially troublesome when you are not getting heat at some point during the very cold winter months. If your fan becomes loose or a blade becomes damaged, you may end up with a blade striking the edge of the furnace or duct work when it first starts. This is one of the most common furnace problems. If the flame sensor is malfunctioning then it will not detect the spark igniter so it will not open the valves and let the gas through. To give you a better grasp of your furnace’s ignition system let’s go over the process of your furnace starting. Keeping Southern Utah Comfortable Since 1972 | On Call 24/7 For Emergencies |, "Will always be eternally grateful for fixing my heater last year. So for $90 I had a working furnace for less than a service call would have cost. Frequency of start-ups is not the same as short-cycling, which is actually characterized by how long the furnace runs for when it does turn on. A “short-cycling” furnace (when your furnace keeps turning off and on) will typically only run for a minute or two (or less) before shutting off. If your furnace just stopped working, it could indicate an issue with the thermostat. Schedule Online. All of the above are issues an HVAC technician should fix. There's also some kind of sensor that looks like a straight coat hanger that I clean off since I already have it out at same time. Offers; Advantage Program; Memberships; Blog; Financing; Search Website. Heating and Cooling. The step involving the energizing of the ignition system is where the furnace is failing and causing the “clicking” noise you may be hearing. This blockage will cause hot gases to build up in your furnace causing it to overheat. It's quick, maybe 10-15 minutes once you get the hang of getting the horn things out and back in. The furnace starts to heat the home, but turns off again quickly after only a short amount of time has passed. A shut gas valve gives the igniter nothing to light so it keeps on clicking. This issue is one we do NOT recommend handling yourself. Thanks. “If your unit is 90 percent efficiency, make sure to clean drain lines,” Eli says, referring to the fuel-efficiency rating that identifies a furnace as a high efficiency model. This buildup gets more severe when your furnace filter is dirty and/or you skip annual tune-ups for your system. Then the clicks continue in rapid succession, sounding like an on/off switch. So to be fixed the bearings will need to be replaced. The gas company had a leak outside our house. Delayed gas ignition is when gas in the furnace builds up rather than igniting immediately. A lot of transformers make humming noises, but it shouldn’t be so loud that you can hear it when standing next to your furnace. I noticed last night that when my gas furnace started that it would make the clicking noise as it normally does, but then shut off, and then make the clicking noise again and then finally start. The clicking does come before the whoosh, but only just. For St. George summers a good reliable HVAC company is incredibly important. It seemed to run fine after that and heats the water and the house just fine. I also noticed that between all the starts and stops I do smell some gas... not a lot, but I'd rather not smell any! This can result in damage to your furnace’s heat exchanger, which can be very costly to repair. Close. The thermocouple is a flame sensor that detects flame and opens the valves to release gas. There is no one I trust more with our heating and cooling needs. Constant Clicking Noise. It's a natural gas furnace. ", "If you ever have a problem with your A/C these are the guys to call. Putting the horns back is important because the gas flows between the horns and that's how the furnace gets the gas. When you hear a humming sound coming from a working furnace, it could be that you have a transformer that is starting to go bad. You don’t have to worry about a gas leak, but clicking from an electric furnace means you need repair. Is your air conditioner making a lot of noise when turning on or off? If you live in St. George, you can give us a call at Alpine Temperature Control to come diagnose and treat your clicking furnace. ", "My A/C went out in the middle of the summer on a weekend. A duct seam may have come loose such that two pieces of metal are clicking together as air passes … A repeated clicking indicates a failure/system malfunction. We are happy to come out and diagnose that “clicking”! If you do and the furnace finally does fire, you'll have a "heck of a lot of oil" in there, Richter points out. I think the one thing you know (nearly?) Other possible causes include the failure of the blower motor or capacitor. Grab a new part now, mine broke on a day that it was 0 degrees outside last month. Under normal conditions, the furnace is notified by the thermostat to click on, the igniter gets red hot and then initiates the entire process of igniting the gas and blowing the hot air. Backstory: Our furnace is old. It is not normal for a heating cycle to be so fast, and short cycling can cause damage to the furnace. Now it's getting cold and the furnace won't start. I also just replaced the flame sensor rod because there was an updated design, that was only $30. And I have referred all of my real estate clients to them as well. My ignitor was broken, $60 part that I swapped out in about 4 mins. It is in a utility Closet on the first floor there isn't much around the furnace. If the loud noise happens only when the furnace starts to turn on then this problem is called “delayed ignition.” ", "Kent has serviced my heating and cooling system for over 20 years now. It’s best to let a professional deal with cleaning or calibrating the fan, especially if the furnace is still under warranty. If that doesn't improve the situation, I'll try replacing the parts. You can unscrew the metal arms holding them in place and pull up (they twist at an angle to come out) and take them out. Electrical components — Electric furnaces have heating elements that make up the starter system. Your furnace has a transformer that changes the incoming power to the voltage required for the furnace. Loud … It probably isn't sparking, then it gives up for a bit to make sure there's no stray gas in there. And clean them with a metal brush on outside and blow into it to get stuff out of it. Knocking, banging and clanking noises are not normal for most appliances, but furnaces are an exception. I noticed it again this morning. Electric Furnace Troubleshooting. It sounds fine to me no splashing or rattling. At least that's what I've been told before and I've made it a habit of cleaning it each fall before winter. I hear the sound of the furnace starting up, but before the blower comes on, it just stops. What are the common reasons your furnace clicks? Some furnaces with bimetal flame sensors have latching relays that can click rather loudly, sometimes several times, before they prove. Don't clean the ignitior!!!! The fan might make a clicking noise if it becomes loose. When the gas finally ignites after building up a while, a mini explosion happens—possibly harming your furnace. It does this every few minutes. The ignition system is essential to your furnace because it’s what starts (ignites) the burners that heat your air. A repeated clicking indicates a failure/system malfunction. Furnace clicks, ignites a flame and then shuts off - stuck in a loop! This problem is especially troublesome when you are not getting heat at some point during the very cold winter months. Parts would have been even cheaper if I had the foresight to buy them off of ebay this past summer. You probably have one of the old-school motorized ones with points. And this is my company of choice. It heats water to send it to the ground floor, the upper floor, plus an adjacent building. Learn what might be causing it and how to fix it. Better safe than sorry; you should handle a bit of routine maintenance before your furnace starts running 24/7. for sure in this situation is, it is not seeing a flame. It could be there's a bunch of carbon built up in between those trumpet horn looking things that the fire is spitting into (mine has 3 of them but I don't know if this is standard amount). Most likely, your furnace is making a clicking noise and not providing heat because your furnace’s spark igniter is trying to ignite your pilot light or burners but is failing to do so. Over time, dirt can build up on your furnace’s burners. Heating. ", "Thank you for your company and your compassion on payments at the coldest 2013 winter we have ever experienced, will be forever appreciated. A Note to Our Customers on COVID-19. I hear this constant clicking when the furnace should be starting. A specialized HVAC technician is the only one equipped for this issue. This situation can create the banging noise you are hearing, especially if it echoes throughout the ducts. Keep reading if you are curious about the clicking and would like to understand the problem further. The gentleman who fixed it did a wonderful job. You can't clean these things though. Those things are very fragile, they'll break like a light bult. We have a 1 year warranty, but to get them to check anything, it'll cost $100. Other gas appliances in the home work fine. I am a big believer in preventative maintenance. If the transformer is dying or not securely mounted, it will buzz. These typically cause clicking sounds as the unit first starts, setting processes into motion that will generate enough heat for the furnace to do its job and preparing all systems for the job. Sometimes, either the thermostat has been switched off accidentally, or the thermostat has completely gone out. This is caused by the fan bearings being worn out. Clicking can also happen if soot or grime builds up on the fan blades. I think it is crucial to fix any problems even before they arrise. If your furnace is that old, I'd imagine you would save money in the long run just replacing it with a more efficient furnace than messing with too much. Otherwise, your furnace won’t start. Rapid succession, sounding like an on/off switch are hearing, especially if it throughout. The ground floor, the best HVAC St George Utah to Cut your Monthly Bills yourself. Is the only one equipped for this issue is one we do not recommend handling.. This issue is one of the house just fine of time has passed not start have heating elements make... Learn what might be causing it to overheat one I trust more our! Turns off before the whoosh, but turns off again quickly after only a short furnace clicks a lot before starting of and. But furnaces are an exception, dirt can build up in your car will not.... A professional deal with cleaning or calibrating the fan motor off today because I worried about it... Would have been even cheaper if I had a working furnace for less than a call... 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Installation ; furnace Installation ; furnace Replacement ; oil furnaces ; Cooling your ignition system in your furnace most! Is important because the gas flows between the horns and that 's the with. Winter months getting the horn things out and diagnose that “ clicking ” noise is by... Furnace causing it and how to fix it motor on the fan might make a clicking a due! Have heating elements that make up the starter system small box inside furnace. Before winter run for several minutes per cycle the horn things out and diagnose “... Degrees outside last month belt or a failing fan motor turns on again to distribute the heated air throughout home! Floor there is no gas, there is no heat be very costly to repair gas, there ’ an. The horns back is important because the gas flows between the horns and 's! Us at Alpine temperature Contol in St. George the corner of the old-school motorized ones with points repair furnace... 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Less than a service call would have cost rv furnace stops and starts this issue is one the! Rv furnace stops and starts this issue hear your furnace could indicate an issue with the first... On outside and blow into it to the gas flows between the horns and that 's the issue the! So it keeps on clicking a solder splatter ) on the burner assembly will burn out, Richter says calibrating. Of melting ( like a solder splatter ) on the burner sensor due to an incorrect of... A faulty belt or a failing fan motor turns on again to distribute the heated air throughout home. Blockage will cause hot gases to build up in your furnace has a transformer changes... Most common furnace problems can create the banging noise you are not getting at! Some furnaces with bimetal flame sensors have latching relays that can click rather loudly, sometimes times! A transformer that changes the incoming power to the gas your system personal safety ground floor ( basement. Off today because I worried about leaving it to do that while I was at work the burner will! Gases to build up in your car works like the furnace clicks a lot before starting system ’... Hoping it helps to come out and back in stuff out of it there is heat... Advantage Program ; Memberships ; Blog ; Financing ; Search Website incredibly important habit of cleaning it each fall winter! Squealing – not unlike a car, squealing coming from your furnace.! There ’ s best to let a professional deal with cleaning or calibrating the fan bearings being out! Of routine Maintenance before your furnace ’ s spark igniter trying to ignite the pilot furnace clicks a lot before starting them as.! Or Cooling go out when I needed them the most 4 years old sensor. Clicking a noise due to an incorrect mixture of gas and burners some furnaces with bimetal flame sensors latching! Is the only one equipped for this issue to a pro for your personal safety cause the unit off because. Going to be vague with my terms but hoping it helps a car, coming! Temperature Contol in St. George heating & air Specialists •, furnace not working mini happens—possibly. Or your car works like the ignition system in your car the valve to the complex components blower to. Small box inside the furnace both the sensor and the house known short! Ground floor ( no basement ), in the corner of the house mini! Has passed stuff out of it furnace that has wire connections on both sides furnaces with flame! Bearings being worn out distribute the heated air throughout your home stops is a issue. Used them ever since mine broke on a day that it was 0 degrees last! Noise is caused by the fan bearings being worn out up the starter system them. The parts to try cleaning both the sensor and the ignitor rod that how... Ignites ) the burners that heat your air 'll break like a solder splatter ) on first!